had these same noise. Very related to a bad camshaft sensor and simultaneous injectors working (ecu doesn't know where the firing order starts). Changed sensor by a BBR made in germany, same issue. Changed another sensor by an original Siemens, and better sounding and less combustion smell in iddle. And the injectors sound natural now.

Its the Pilot Bearing for sure.

Did you find the fix already? Have the same with my e39 523i

thats bc sparkplug is loose

problem solved?

ماهو سبب هدا الصوت

My n52 have the same noise, where’s this coming from?

I know that this video is from 5 years ago, but I have a question... is it very expensive to maintain and repair a bmw car? Thank you

Injectores

So I got quite similiar sound although louder I guess, but it's same pace and similiar clatter. I used my stethoscope to find which part makes this sound and, it's quite hearable when touching valve cover bolts, but after opening oil filling cap noise level doesn't change even when I press my ear to open hole, and for sure sound should increase if it would be lifter, but then touching each injector with probe of stethoscope gives clear knock/clatter in exact pace being hearable from around engine. Also I am running very high long term fuel trim Like +8.5 on bank 1 and +13 on bank 2, although stft are taking those values down last time the stft were like -30 and -40 Now I am closing to oil change, will go with much better product than last two oil changes, and also will be replacing fuel filter and will see how the sound goes then. Maybe finally I'll zero my adaptation and'll see how it goes then when I had lower LTFT values engine was quiet my best guess is due to probably long injector open times their closing is rough. If I won't forget I'll do update here in comment section. Maybe If I'll find time I'll upload some video of my sound and how it's changing or not after replacements I am about to do

Rafael una pregunta ese ruido que es ?

Ok this is strange bmw e39 2001 think it’s the m52 engine. i just had my ctv or cvt valve done under the inlet manifold and they did the rocker cover gasket too. Same noise as yours specially without the top covers. When i press down hard on number 3 coil pack it shuts up, i thought they haven’t done up the spark plug,, checks it and it’s ok, refits the coil pack and bolts it down hard. Starts her up and no noise then after 5 minutes of idle it cane back. I’m going to swap the coil packs as two are round (aftermarket) and the others are square top.

Did you find the issue? Mine does the same when warm and idling. I removed the ac compressor, no change

Same noise. Did u solved ?

injector seals :)

Damn, i have the same issue on my m52b25tu

Same to me...but only when hot and accelerate slowly

Middle support bearing or differential noise.

I had a kind of similar noise on my e60 m52..turned out the compressor was dead, I removed the compressor belt and voilà..the irritating noise was gone!

Thanks for sharing....I guess is a normal thing in bmw. Cus I'm not the only one

Que función cumple esta pisa

Y el SAAB aguanto el impacto como un campeon! Si senior!!! SAAB Campeon!!

Did you solve it? I some problem noise, in cold is quiet, but after minutes...

kzbin.info/www/bejne/qIunqZl3irKhqZY

Same issue, same sound, I still dont know if its a bearing, did you ever figure it out???

That's the vanos growl.

What was it?

Lifters???

Did you solve it?i have the same noise.

I sold the car last summer. The M52 is a good engine but this kind is noise seems rather frequent in BMWs and lets down the refinement supposed to an inline six engine.

www.beisansystems.com/procedures/single_vanos_diaphragm_spring_procedure.htm

what year is the car, when before 1995 have a problem with washers between the vanos and the camshaft

And mine m52b28tu makes the same noise,forget about.Nothing special.Can be the tensioner of chain,maybe.Enjoy

Did you solve it?

Hi, did you get any info on how to fix this issue please ? My E36 328i does the same. Thanks in advance!

My x5 n55 engine has same problem. Any one knows the reason?

What is the Problem from this car?

Ami me pasa lo mismo

Did you ever find out what it was??

Was it a bad bearing?

que era ?

Hi, I have been endlessly searching for this exact sound on KZbin with no definitive answer to what it can be, I have the exact same noise on mine, I have tried various oil grades as well. I managed to dampen the sound slightly but still there. It’s driving me nuts! Mine is fine when cold soon as it warms up to operating temperature it sounds like yours. Did you find out what is causing the racket ? ShaQ

It’s the housing of the hydraulic lifters. Thicker oil will reduce the noise, but the only way to stop it is changing the housing.

Amigo como se soluciona ese problema?

I´m afraid not. I changed the oil to Motul 5w40 synthetic and it seems a bit quieter.

Figured it out?

Pues fue la correa de los arboles contrarrotantes (arboles de equilibrado). Excesivamente tensa, el tensor de esa correa es manual (al contrario de la correa de distribucion cuyo tensor es automático) y destensándola un poco se solucionó. Suerte.

tengo un accord 97 y tiene el mismo ruido después de dos semanas de cambiar la banda de distribución alguien sabe que sera